Students learn the difference between a gem and a mineral. Includes specimens of gems to complete lab and may include the following: tiger eye (tumbled), hematite (tumbled), adventurine (tumbled), agate (tumbled), amethyst (tumbled) and the gems: opal, garnet, peridot, amethyst, citrine, and plastic. This kit may change depending on availablity. All gems are real but have flaws so that is why we can purchase at a big discount. On lab sheet substitute products.
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